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Item Influnce of in situ and ex situ green manures on the productivity of rice and onions in the Mahaweli system C of Sri Lanka(Postgraduate Institute of Agriculture, University of Peradeniya:Peradeniya, 1993) Bandara, K.M.C.; Sangakkara, U.R.Item Weed Management by rice straw mulching in direct seeded lowland rice (Oryza sativa L.)(Postgraduate Institute of Agriculture, University of Peradeniya:Peradeniya, 2011) Devasinghe, D.A.U.D.; Premarathne, K.P.; Sangakkara, U.R.Item Effect of purple nutsedge(Cyperus rotundus) population densities on onion(Allium cepa) as influenced by Nitrogen in the Eastern Province of Sri Lanka(Postgraduate Institute of Agriculture, University of Peradeniya:Peradeniya, 2011) Geretharan, T.; Sangakkara, U.R.; Arulnandhy, V.Item Intercropping of young cashew (Anacardium occidentale L.) and its effects on crop productivity and land utilization(Postgraduate Institute of Agriculture, University of Peradeniya:Peradeniya, 2003) Abeysinghe, D.C.; Sangakkara, U.R.; Jayasekera, S.J.B.A.Item Effective weed -free period of common beans in two different agro -ecological zones of Sri Lanka(Postgraduate Institute of Agriculture, University of Peradeniya:Peradeniya, 1999) Premalal, K.P.S.B.; Sangakkara, U.R.; Van Damme, P.; Bulcke, R.Item Productivity of Maize (Zea mays L.) and Mung bean (Vigna radiate L. Wikzek) in homegardens and cropping fields under subsistence conditions(Postgraduate Institute of Agriculture, University of Peradeniya:Peradeniya, 2009) Wijesinghe, D.B.; Egodawatta, W.C.P.; Sangakkara, U.R.; Pushpakumara, D.K.N.G..; Stamp, P.Item Food security in Sri Lanka - agronomic implications and potentials(National Science Foundation:Colombo, 2008-11) Sangakkara, U.R.; Nissanka, S.P.Item Estimation of water use of mature coconut (Cocos nucifera L.) cultivars (CRIC 60 and CRIC 65 ) grown in the low country intermediate zone using the compensation heat pulse method (CHPM)(National Science Foundation:Colombo, 2009-9) Madurapperuma, W.S.; De Costa, W.A.J.M.; Sangakkara, U.R.; Jayasekara, C.Item Impact of green manure on productivity patterns of homegardens and fields in a tropical dry climate(Postgraduate Institute of Agriculture, University of Peradeniya:Peradeniya, 2011) Egodawatta, W.C.P.; Sangakkara, U.R.; Wijesinghe, D.B.; Stamp, P.Item Productivity of intercropped maize (Zea mays) and varieties of yard -long bean (Vigna unguiculata) as affected by planting time(Postgraduate Institute of Agriculture, University of Peradeniya:Peradeniya, 1996) Ranasinghe, R.A.D.T.K.; De Costa, W.A.J.M.; Sangakkara, U.R.
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